Chicago, Rabi'I 28, 1438, Dec 27, 2016, SPA -- The furious winter storm that swept into the northern Great Plains weakened Tuesday, but thousands remained without power in the Dakotas and Michigan. High winds and drifting snow continued to make travel hazardous in the Dakotas, even as vast stretches of highways that had been closed reopened to traffic. The no-travel warnings issued for much of North Dakota had largely expired by Tuesday, although the National Weather Service warned that drifting snow still blocked some roads. The Minot International Airport, which was closed Monday due to whiteout conditions, reopened Tuesday and was expecting its first flights - incoming and outgoing - late morning. Winds gusting 40 mph to 50 mph also led to delays and cancellations at Minneapolis-St. Paul International Airport on Monday, but the airport returned to full operations the next day, reporting just a handful of delays. The South Dakota Rural Electric Association said roughly 13,700 of its customers were without power early Tuesday, and it could take several days to restore service. High winds knocked out power to thousands of customers in Michigan on Monday, AP reported. --SPA 19:10 LOCAL TIME 16:10 GMT www.spa.gov.sa/w299623